Portsmouth Harbour - Port Solent Weather Forecast

    • 12
    • 14

    Light rain

    • 11
    • 14

    Heavy rain

    • 9
    • 13

    Sunny day

    • 9
    • 11

    Cloudy

    • 7
    • 11

    Light rain

    • 11
    • 12

    Cloudy

    • 11
    • 12

    Light rain

Today 8 Dec London and South East England

Mostly dry and bright early Monday morning and the brisk winds will continue. Cloud increasing with some showers and occasional rain likely by early afternoon. Winds easing for a time in afternoon. Maximum Temperature 14C.

Tonight 8 Dec London and South East England

Cloudy skies with further outbreaks of rain arriving, with some heavy burst by midnight. Winds increasing to strong with coastal gales likely later. A mild night. Generally drier later. Minimum Temperature 10C.

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Portsmouth Harbour - Port Solent Temperature Statistics

December Temperature

Thorney Island (12km)

  • Lowest 5 December, 2025

    -1.1 °C

  • Average December

    8.9 °C

  • Highest 6 December, 2025

    12.2 °C

Climate (2020–Present)

Thorney Island (12km)

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  • Average Low 2020–2025

    8.6 °C

  • Average 2020–2025

    11.9 °C

  • Average High 2020–2025

    15.1 °C
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